ART Pro Audio Tube Mic Preamp/comp/eq - Long & McQuade Music Educator Site
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ART Pro Audio Tube Mic Preamp/comp/eq

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SKU: # 357114
Model: #

PROCHANNELII

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The ART Pro Channel II uses second-generation discrete Class-A microphone preamp to provide clean quiet gain while maintaining incredible transparency. A powerful dynamics processor subtly controls transients and noise of the most demanding sources.

The ART Pro Channel II 's semi-parametric EQ offers wide tune-ability and can be patched before OR after the dynamics processor. Separate rear-mounted insert points allow patching in external signal processing gear immediately after the Mic preamp and before the EQ and dynamics processor. Both analog and LED meters provide a detailed indication of audio levels.

Features:
Fully Featured discrete class "A" Tube Microphone Preamplifier
1/4" High Z input on the front panel
Selectable plate Voltage
Smooth musical sounding Optical Compressor
Separate Attack and Release controls
Auto/Manual Attack/Release switch
Parametric EQ
Large VU and LED meters
Multi section clip monitor LED
Selectable Source switches for VU signal monitoring of any section of the unit
Two insert loops
+4/-10 dB switch for optimal signal output levels
Toroidal power transformer for low noise

Specifications:
Input Impedance
- Mic: 150 to 3.4K Ohms, variable
- Instrument: 2.5M Ohms
- Preamp Insert: .5K Ohms

Output Impedance
- Balanced Output: 600 Ohms balanced
- Unbalanced Output: 300 Ohms
- Insert Outputs: 300 Ohms

Frequency Response
- Analog In to Analog Out: 12Hz to 100KHz +0, -1dB
- THD @ 1 KHz: <0.15% typical
- THD @ to to 20 KHz: <0.033% typical

Equivalent Input Noise
- Mic/Line: -128dBu, Input shortened, Max gain, "A" weighted
- Instrument: -109 dBu, Input shortened, Max gain, "A" weighted

Maximum Input Level
- Mic: +18dBu balanced
- Instrument: +15 dBu

Maximum Gain
- Mic: 70dB (XLR to balanced output)
- Instrument: 64 dB (1/4" to balanced output

Maximum Output Level
- Balanced: +24 dBu
- Unbalanced: +20 dBu
- Output Level At Meter 0 VU: +4 dBu/-10dBV

Preamp
- Microphone Gain: 0 dB to +56 dB
- Instrument Gain: +3 dB to +50 dB
- Low Cut Filter: 0 - 250 Hz, 1-pole, 6 dB/Octave

EQ
- Boost/Cut: +/- 12 dB on each band
- Low Freq. Tuning: 40 / 120 Hz Selectable
- MID 1 Freq. Tuning: 20 Hz to 2 KHz continuously variable
- MID 2 Freq. Tuning: 200 Hz to 20 KHz continuously variable
- High Freq. Tuning: 6 KHz / 18 KHz Selectable

Compressor / Limiter
- Attack Time: 250 uSec. to 100 mSec.
- Release Time: 00 mSec to 3 Sec.
- Compression Ratio: 2:1 to 30:1

- Dimensions (H x W x D - in): 3.5 x 19.0 x 9.2
- Dimensions (cm): 8.9 x 48.3 x 23.3
- Weight (lbs/kg): 11/5
- Power Requirements: USA - 105 to 125 VAC/ 60 Hz
- Export units configured for country of destination

Good Features but Noisy0 of 1 customers found this review helpful

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Product ExperienceI own it
Closest StoreHamilton, Ontario
I bought this a few years ago to do improve my audio quality for live streaming and podcasts. When I first bought it, I couldn't get nearly enough gain for my SM7B. With all the output knobs switched to full, I was getting barely any signal into my interface. The specs list 60dB of gain but I think that's from INPUT to OUTPUT, not the preamp itself. I later acknowledged that maybe a cheap channel strip might not have the strongest preamp so I added a Cloud Lifter to boost the SM7B. Preamp section now showing lots of signal (with the preamp "gain" knob set to +12 and the +20dB switch engaged). Though annoyingly, hardly anything on the output of the unit. I was getting more level into the audio interface but now there was some audible distortion (the compressor section was starting to clip) and lots of noise. I decided at this point that the SM7B + CL into the onboard mic preamp of my interface was acceptable and stuck with setting the low cut and presence boost switches on the mic. Whatever I tried, I couldn't get the noise to go away. It's subtle, but you can still hear it clearly in the mix. I tried swapping cables, I tried lifting pin 1 on an XLR cable, I tried different interfaces and mixers. I scoured the internet for a solution and apparently others are having the same issue. The compressor and EQ sections are very well featured and seem like they sound really clean and neutral, but the output noise is just too distracting.
Posted by KM on May 3, 2020
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Pro Channel 22 of 2 customers found this review helpful

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OverallProduct ratingProduct ratingProduct ratingProduct ratingProduct rating
Product ExperienceI own it
Closest StorePeterborough, Ontario
When I plug my upright bass into most of my bass guitar amps, all kinds of problems come up. If I do manage to get a good sound, increase in volume changes the tone adversely. This unit works for me. It allows me to control how much goes in, roll off sub sonics, control how much goes out, compression is good, EQ super, and controls output with options to meter as you set up. Bonus, it is quiet as a rock. Now I can stand next to a pile of speakers and not need sponges placed under my tail piece.
Posted by Brittain Johnson on Apr 9, 2019
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Sale Price: $349.00
Store Special Product - ART Tube Mic Preamp/comp/eq
Model: PROCHANNELII
Serial: S160667143
Quantity Available: 1
Condition: Used
Sale Price: $419.00
Store Special Product - Tube Mic Preamp/comp/eq
Model: PROCHANNELII
Serial: S181180587
Quantity Available: 1
Condition: Used